Harness motion for looms



May 23, 1933. R. J. KUNATH HARNESS MOTION FOR LOOMS Filed July 30, 1931 2 Sheets-Sheet l QW 9( MMM May 23, 1933. R. J. KUNATH HARNESS MOTION FOR LOOMS Filed July-SO, 1931 2 Sheets-Sheet 2 m M w amat:

Patented May 23, 1933 UNITED STATES RICHARD J. KUNATH, F RIDGEFIELD IPAB/K, NEW JERSEY HARNESS MOTION ron Looivrs Application filed July 30,

This invention relates to new and useful improvements in harness motions for looms. The primary object of this invention is to provide speciic improve-ments for the cone type of loom motion illustrated and described in my patent numbered 1,7 111,7 91, issued May 28, 1929.

The loom motion described in my above identified patent includes a cone vmounted upon the loom frame and oscillated by a link and lever connection driven by any suitable portion of the loom driving mechanism. This cone is connected to each of the vvarious harness frames by means of a iiexible cable connected at one end to a portion of the cone and connected at its opposite end to an intermediate portion of a flexible cable or the like which in turn is connected at its opposite ends to a harnessframe.y The use of a flexible cable as a connection between the cone and the intermediate portion of the flexible element connected to a harness frame has been found to be imperfect in certain respects. The cable, due to its circular cross sectional formation, rotates or twists during operation of the loom and has a tendency to break the connection between the free end of the cable and the intermediate portion of the exible element for its respective harness frame. The use of a single cable for each harness frame is unsatisfactory, as'any breakage in the same permits the harness frame attached to the broken cable to be entirely released or dropped with the result that the fabric being produced on the loom at the time of the breakage is materially damaged.

In my patented loom motion, I have employed a clutch mechanismv for connecting and disconnecting the cone to the train of mechanical elements employed for oscillating the same. This train of mechanical elements necessarily is located at the rear of the loom frame, and the clutch has been designed so that it must be operated from the rear of the frame with the result that the operator of the loom must move around the frame to the rear of the same before he can actua-te the clutch to permit a leveling operation to be performed.

d Specifically stated, the objects of the 1931. Serial No. 554,132.

presentinvention are to improve upon the structure disclosed in my former patent by employing a length of sprocket chain for connecting eachharness frame to the cone whereby twisting or rotating of the flexible connection between the cone and the elements connected to the various harness frames will be prevented; by providing two of these sprocket chains for connecting each harness frame to the cone; and b-y providing acontrol 69 for the clutch, which permits leveling, that may be operated from the front of the loom frame with the result that the operator of the loom need not leave his usual position to bring about a leveling operation.

Other objects and advantages of the invention will be apparent during thel course of the following'description.

In the accompanying drawings, forming a part of the specification and in which like numerals are employed to designate like parts throughout the same,

Fig. 1 is a rear elevational view of a fraginentary portion of a loom frame with my improved form of harness motion attached thereto, i

Fig. 2 is a top plan view of the structure shown in Fig. 1, Y l

Fig.v 3 is a detail plan view, partly broken zttway, of the cone portion -of the harnessmo- .80

ion,

Fig. 311 is a longitudinal sectional view taken upon line 4 4 of-Fig. 3,

Fig. 5 is a transverse sectional view taken upon line 5 5 of` Fig. 3,

Fig. 6 isa detail elevational view of one length of a sprocket chain with its end oonnecting elements employed for connecting the flexible element attached to a harness loom to the cone element, and 90 Fig. 7 is a fragmentary view of the chain shown in Fig. 6 and furtherillustrating the formation of this chain.

In the drawings, wherein for the,` purpose of illustration is shown a preferred embodiment of this invention, the numeral 10 deslignates in its entirety a loom frame. It is to be understood that I do not desire to limit myself to any particular form of loom, and

for this reason lI have only disclosed asuti- ,100

cient portion of a loom to enable me to properly locate and describe the harness motion embodying this invention.

The parallel top bars 11 of the loom trame have suitably secured thereto the shaft 12 which support the grooved pulleys or rollers 13 arranged to extend transversely of the frame, as best illustrated in Figs. 1 and 2.

Each side of the loom traine has attached to one upper end-corner thereof a substantially triangularly shaped bracket arm 14. The bolts 15 are employed forconnecting a bracket arin 14 to the trame and the said arm is provided with a pair of positioning lugs 16, as best illustrated in Figs. 1 and 2. These parallel 'bracket arms 14 extend upwardly and longitudinally of the loom frame and have 'suitably secured to their outer ends, as by means of set screwsY 17, ashaft 18 which rotatably supports the cone 19.

In Figs. 3 to 5 inclusive the cone 19 is illustrated as including aligned hub portions 20 having openings of a proper size to snugly fit the shaft 18. The periphery of this cone is 'formed with pairs of grooves 21, the grooves of each pair being of equal diameter. The hub 20 positioned at the larger end of the cone is formed with a circular bearing portion 22, tothe outer end of which is secured a centrally apertured, removable flange 23 which cooperates with the end face 24 of the cone to provide .a groove, of annular formation, for the reception of the enlarged end portion ..25 o the oscillating arm 26. Thls arm isflongitudinally slitted at 27 for a purpose to be'described at a later point.

The end wall 28 of 'the cone 19 is formed with a concentric aperture 29v within which is positioned a sleeve '30 'having a ilange at one end to prevent movement of the sleeve into the interior of thecone. The arm 26 is :formed with a hollow `boss 31 within which is `positioned a clutch pin 32 urged forwardly by the spring 33 for causing the clutch pin to Aenter the aperture of the sleeve for p'ositively connecting the oscillatingv arm 26 to the cone. :The clutch pin 32 is provided with a stem 34 to which is connected a head 35 lo- -cated eXteriorly of the hollow `boss "31.

series of apertures 40 which register circumferentially with the grooves 21, one aperture being provided for each groove. l

v Theloom yframe is provided with the usual fdo'bby kconstruction which is clearly represented by `the frame portion 41. Mounted upon this frame portion is a'lever 42 which is rocked by meansof a link 43 adapted to be driven by any suitable portion :of the loom mechanism. The free end portion of this lever is formed with a slot 44 through which a. pivot pin 45 extends and within which this pivot pin may be adjusted longitudinally of the lever and anchored in any desired adjusted position. The pin 45 is connected to one part 46 of a knuckle which includes the second cooperating part 47. This second knuckle part is provided with an apertured ear48 internally screw threaded Jfor adjustable connection with a link 49. This connection .is maintained by a lock nut 50. The opposite end of the link 49 is threaded into an apertured ear 51 carried by a connecting rod 52. This adjustable connection is maintained by the lock nut 53. The connecting rod has journaled in its free end the pin 54 which is received within the slot 27 of the arm 26. This form of pin and slot connection permits the connecting rod 52 to be adjusted longitudinally with respect to the arm'26 and locked in any desired adjust-ed position.

The arm 26 has formed integrally therewith a branch 55 to which is pivotally connected the control lever 56. The pin 57 forms thepivotal connection kbetween the control lever 56 and the 'branch 55, and it Will be noted .that this pin 57`eXtends at right angles to the aXis of the cone 19. In Figs. 3 and 4, the lever 56 is illustrated as having an arm 58 which is formed with an apertured'end portion 59 receiving a reduced part of the 'head 35.. It will be understood that movement of the free end '60 of the control lever 56 vertically downwardly toward the `cone V19 will cause the arm 58 of the lever to move axially outwardly with respect to the cone for ,pulling the clutch pin 32 against the tension .of the spring33 and that sufficient movement of `the lever 56 in the direc- 'tion described will withdraw the clutch pin f loom frame. The loom is provided with any Y desired number of harness frames `which are represented by the top bars 61. Each one of these bars has connected to the upper side thereof a. pair of iieXible elements, such as cables 'or the like 62 which are trained over the 'grooved rolls or pulleys 13. Loosely connected to each one of the flexible elements 62, at a point intermediate the ends of the same, is a sprocket chain 63. It will `be seen that veach harness frame 61, therefore, is Y -1'30 provided with 'a pair of lexible elements 62 and a pair of chains 63. These flexible elements and chains are duplicated for each harness frame so that any breakage in one of these connections will not drop a harness frame.

In Figs. 6 and 7 one length of the sprocket chain is illustrated in detail. It will be noted that the chain is made up of a plurality of pivotally connected side plate members 64 and that the construction of the chain will prevent twisting of the same. One end of each chain is formed with a hook 65 adapted to be threaded through an aperture 40 in the connecting bar 37. The opposite end of each sprocket chain is Jformed with a connector 66, which includes the bifurcated portion 67 between the urcations of which the end of the chain is secured. The remaining part oi the connector 66 has formed in the opposite edges thereof the grooves 68 which receive opposite portions of the bight 69 formed in the iiexible element 62 as it passes through and around the connector 66.

The sprocket chains 63 are arranged within their respective grooves 2l and the formation of the sprocket chains plus the grooves prevents twisting or rotation of the chains with the result that no shearing action is present between the connectors 66 and the exible elements 62.

The general operation of this device is the same as that described in connection with the harness mot-ion set forth in my former patent with the exception that after the lever 56 has been actuated to withdraw the clutch pin 32 from the collar 30 of the cone 19, relative oscillation between the cone and its driving arm 26 will disalign the clutch pin 32 with respect to the collar 30 and the free end of the clutch pin will freely ride upon the face 24 of the cone until it is again positioned to register with the collar 30 when the spring 32 will torce the pin in the said collar for locking the arm to the cone.

It is to be understood that the form of this invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, what I claim as new is:

l. In a harness motion for looms, the combination with a loom frame, of a plurality of harness frames, a plurality of rolls rotatably supported by the upper portion of the loom Jframe, a pair of flexible elements attached at their free ends to each harness frame, a cone journaled for rotation on said loom frame, said cone having a. plurality of pairs of grooves with the grooves of the respective pairs of dillerent diameters and with the two grooves of each pair of the same diameter, a non-twisting flexible connection between the cone and each of said flexible elements, said flexible vconnections being arranged in pairs with each pair cooperating with one pair of grooves, and means for oscillating the cone.

2. In aharness motion for looms, the combination with a loom frame, of a plurality of harness frames, a plurality of grooved rolls journaled on said loom frame, a pair of ilexible elements connected to each one of the harness frames and paing over the grooved rolls, a cone journaled on said loom frame, said cone having aplurality of pairs of grooves with the grooves of the respective pairs oi diilerent diameters and with the two grooves of each pair of the saine diameter, a sprocket chain connected to each one of the said flexible elements and detachably .con-

nected to the cone, said sprocket chainsbeing arranged inpairs with each pair cooperating with one pair of grooves, andmeans for oscillating the cone.

3. In a harness motion for looms, the com-v bination with a loom frame, of a plurality of harness frames, a cone--journaled on said loom frame, flexibleA means connecting the harness frames to the cone, an arm journaled on one end of the cone, spring pressed clutch means Jfor connecting and disconnecting the arm with respect to the cone, means for oscillating the arm, and a control lever extending longitudinally of the cone and operatively connected to the spring pressed clutching means for controlling the action of the latter.

4. In a harness motion for looms, the com- 'l bination with a loom frame, of a plurality of harness frames, a cone journaled for rotation at one end of the loom frame, flexible means for connecting the harness frames to the cone, an oscillating arm journaled on one end of the cone, clutching means for connecting the arm to the cone, control means for the clutching means extending to and operable Jfrom the opposite end of the cone, and means for oscillating said arm.

5. In a harness motion for looms, the combination with a loom frame, of a plurality of harness frames, a cone journaled for rotation at one end of the loom frame, flexible means for connecting the harness Jframes to the cone, an arm journaled on one end of the cone, a clutch connection between the arm and the cone, a control lever pivoted on the arm and extending to the opposite end of the cone, a connection between the lever and the clutch means for causing operation of the lever to actuate the clutch `for disconnecting the arm with respect to the cone and means for operating the arm.

6. In a harness motion for looms, the combination with a loom frame, of a plurality of harness frames, a plurality of rolls journaled on the harness frame, a cone journaled on the harness frame, flexible means including 4 'remesa sections of sprocket chains for' cenneeting the harness frames to the cone, said flexible means passing over said rolls, an arm journaled on one end of the cone, Clutch means "3l for eonneeting the arm to the cone,l` a lever pivoted on the arm and operatively 'connected to the clutch means and an adjustable link and lever mechanism for oscillating the arm.

7. In a harness motion for looms, the Com- 10 bination with a loom frame, of a plurality of harness frames, a plurality of rolls rotatably supported by the upper portion of the loom frame, a pair of flexible elements attached at their free ends to each harness frame, a ig cone journaled for rotation on said loom frame, said cone having a plurality oi pairs of grooves with the grooves of respective pairs of diiferent diameters and with the tWo l grooves of each pair of the same diameter, a i() non-'twisting flexible connection between the cone and each of said flexible elements, said flexible connections being arranged in pairs With each pair Cooperating With one pair of N grooves, an oscillatingY arm journaled on one Y 25 end'of the cone, clutch means for connecting the arm to the Cone, control means for the clutching means extending to and operable from the opposite end ofthe cone, and means n for oscillating said arm. 5

In testimony whereof I aflix my signature.

RICHARD J. KUNATH. 

